Atom Nomenclature for OSP

The atom nomenclature in PDB data files was revised with the release of data in the PDB Format Version 3.0. These changes make the PDB atom names used by PDB compliant with existing IUPAC nomenclature for standard amino acid and nucleotides (Pure & Appl. Chem., 70, 117-142, 1998) with the exception of the well established convention for C-terminal atoms OXT and HXT. A small number of additional changes were introduced in Version 3 to make atom labeling more conventional. The following chemical diagrams and tables provide the correspondences between atom names used in Version 3 and Version 2 PDB formats.

Labeled Chemical Diagrams

Chemical diagram with format V3 atom labels (heavy atoms)
Chemical diagram with format V3 atom labels (all atoms)
Chemical diagram with format V2 atom labels (heavy atoms)
Chemical diagram with format V2 atom labels (all atoms)

Atom Name Correspondences for OSP

Atom Name (V3) Atom Name (V2)
O3 O3
S2 S2
O4 O4
C7 C7
C8 C8
C9 C9
C10 C10
N2 N2
C4 C4
C3 C3
C2 C2
C5 C5
C6 C6
C1 C1
S1 S1
O1 O1
O2 O2
N1 N1
H71 1H7
H72 2H7
H81 1H8
H82 2H8
H91 1H9
H92 2H9
H101 1H10
H102 2H10
H3 H3
H2 H2
H5 H5
H6 H6
HN11 1HN1
HN12 2HN1